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中国化学快报（英文版）
中国化学快报（英文版）

梁晓天

月刊

1001-8417

cclbj@imm.ac.cn

010-63165638

100050

北京市先农坛街1号

中国化学快报（英文版）/Journal Chinese Chemical LettersCSCDCSTPCD北大核心SCI
查看更多>>本刊是由中国科协主管、中国化学会主办、中国医学科学院药物所承办的学术期刊，是由著名化学家梁晓天院士主编。是中国化学界通向世界的窗口，内容覆盖化学全领域。本刊的办刊宗旨是“新、快、准”，我们将坚持这个宗旨，力求及时反映化学研究中各个相关领域内的最新进展及热点问题，主要读者群是科研人员、研究生、大学教师。现已被国内外多家数据库收录，如SCI　Search、Chemical Abstract、Research Alert、Chemistry Citation Index、《日本科技文献速报》、万方数据数字化期刊群、中国学术期刊过刊全文数据库、中国学术期刊（光盘版）、中国学术期刊文摘、中文期刊全文数据库、俄罗斯Рж期刊源等。
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    3D layer-by-layer amorphous MoSx assembled from[Mo3S13]2-clusters for efficient removal of tetracycline:Synergy of adsorption and photo-assisted PMS activation

    Yue LiMinghao FanConghui WangYanxun Li...
    369-375页
    查看更多>>摘要：Peroxymonosulfate(PMS)activation and photocatalysis are effective technologies to remove organic pol-lutants,but the adsorption effect of the catalyst is usually unheeded in degradation process.Herein,a bifunctional catalyst of amorphous MoSx(a-MoSx)with 3D layer-by-layer superstructure was synthesized by assembling basic active units[Mo3S13]2-of MoS2.The large interlayer spacing and high exposure of active sites render a-MoSx to have excellent synergy of adsorption and photo-assisted PMS activation for tetracycline(TC)degradation.Experiments and DFT calculation show that TC can be efficiently enriched on a-MoSx by pore filling,π-π interaction,hydrogen bonding and high adsorption energy.Subsequently,PMS can be quickly activated through electron transfer with a-MoSx,resulting in high TC degradation ef-ficiency of 96.6％within 20 min.In addition,the synergistic mechanism of adsorption and photo-assisted PMS activation was explored,and the degradation pathway of TC was expounded.This work is inspira-tional for constructing bifunctional catalysts with superior synergistic adsorption and catalytic capabilities to remove refractory organic pollutants in water.
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    Facile preparation of ZIF-8/ZIF-67-derived biomass carbon composites for highly efficient electromagnetic wave absorption

    Xuexia LinYihui ZhouJiafu HongXiaofeng Wei...
    376-381页
    查看更多>>摘要：Biomass absorbing materials have received increasing attention for electromagnetic wave(EMW)absorp-tion field absorbing materials due to its low density and high dielectric loss.However,the biomass EMW absorbing materials often suffer from the insufficient magnetic loss and impedance matching.In this work,a facile ZIF-8/ZIF-67-derived biomass composites(CoZnO@BPC)was prepared for high-performance EMW absorption based on multi-component micro,nano structures metal particles and xanthoce sorbifo-lia bunge shells-derived biomass porous carbon(BPC).The dielectric loss and/or magnetic loss abilities of CoZnO@BPC composites were adjusted by changing the mass ratio of Zn2+to Co2+ions.Under the filled amount of 20 wt％,CoZnO@BPC exhibited excellent EMW absorption with the minimum reflection loss(RL)at 15.84 GHz is-50.2 dB,and the matching thickness is only 1.7 mm.By adjusting the ZIFs mass ratio,the effective absorption bandwidth(EAB)can be up to 5.92 GHz(from 12.08 GHz to 18 GHz),and the matching thickness is only 1.9 mm.The results provide a new insight for the economical and efficient preparation of lightweight and advanced microwave absorbing materials.
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    Ultrasensitive detection of microRNA-21 in human serum based on the confinement effect enhanced chemical etching of gold nanorods

    Min HuangRu ChengShuai WenLiangtong Li...
    382-386页
    查看更多>>摘要：Natural enzymes,such as horseradish peroxidase(HRP)),are a class of important biocatalysts with the high specificity,but their catalytic efficiency is usually unsatisfactory.Thus,the higher catalytic efficiency induced by the confinement effect is promising in optical sensing systems.In this work,a dark-field light scattering sensing platform was fabricated by the confinement effect of HRP from hybridization chain reaction(HCR)and then released to solution by the toehold-mediated strand displacement reaction(TSDR).Then,HRP catalyzed the 3,3',5,5'-tetramethylbenzidine(TMB)to TMB2+with the assistance of hydrogen peroxide,which etched the gold nanorods(AuNRs)with the weakened light scattering.The single-particle assay was established based on the decreased light scattering intensity of AuNRs under dark-field microscope.The proposed assay revealed excellent analytical performance within a linear range from 25 pmol/L to 600 pmol/L,and a low limit of detection of 3.12 pmol/L.Additionally,it also manifested satisfactory recovery of miRNA-21 in human serum samples.The high sensitivity,excellent specificity,and universal applicability make this sensing platform promising for disease diagnosis.
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    Colorimetric detection of α-glucosidase activity using Ni-CeO2 nanorods and its application to potential natural inhibitor screening

    Jia ChenYun LiuZerong LongYan Li...
    387-391页
    查看更多>>摘要：In this work,we established an exceptionally facile method for the preparation of Ni-CeO2 nanorods in a kind of deep eutectic solvents(DESs)composed of L-proline and Ce(NO3)3-6H2O.First,Ni-CeO2 nanorods were successfully prepared by adding Ni(NO3)3-6H2O to DESs.Then,we found that Ni-CeO2 nanorods prepared in DESs have more prominent oxidase-like activity than pure CeO2.The outstanding catalytic activity of Ni-CeO2 could be ascribed to its high Ce3+/Ce4+ratio.As a proof-of-concept application,the Ni-CeO2 nanorods were successfully acted as a colorimetric platform for the sensitive determination of ascorbic acid and α-glucosidase activity,which displays excellent analytical performance.Moreover,this sensing platform was applied for screening natural α-glucosidase inhibitors,such as terpenoids from nat-ural products.The results indicated that ursolic acid and oleanolic acid had good inhibitory rates.This strategy not only provides a new way to construct more kinds of nanomaterials from DESs,but also of-fers a facile and effective tool to screen the α-glucosidase natural inhibitors as potential anti-diabetic drugs.
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    Two birds with one stone:Functionalized wood composites for efficient photocatalytic hydrogen production and solar water evaporation

    Deqi FanYicheng TangYemei LiaoYan Mi...
    392-397页
    查看更多>>摘要：Maximizing solar energy utilization is a persistent challenge in photo catalysis,which determines sustain-able solar-driven photocatalytic process.Photo thermal-coupled photo catalysis is considered as a promis-ing solution to tackle the issues of sustainable energy scarcity and environmental pollution by harvesting the full-spectrum solar energy.Herein,a highly efficient photo thermal-accelerated photo catalysis system is elaborately established,in which the assembled carbonized stick/Nb2C MXene evaporator can heat wa-ter into vapor and the integrated g-C3N4 photocatalyst further enables high-efficiency photocatalytic hy-drogen production.The designed hyperboloid wood-based architecture possesses a multiphase interface of water steam/catalyst/hydrogen to reduce the transport resistance of hydrogen gas in liquid and ulti-mately maximize the output of hydrogen energy.Consequently,this coupled photothermal-photocatalytic system achieves a stable solar evaporation rate of 2.16 kg m-1 h-1 under one sun irradiation and highly efficient hydrogen-evolving rate of 3096 μmol g-1 h-1.This work paves a way to explore the improve-ment of photocatalytic hydrogen production by synergic photothermal effect for potential applications in renewable solar energy utilization and hydrogen production.
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    Surface treatment of GaN nanowires for enhanced photoelectrochemical water-splitting

    Wenhao ChenJian DuHanbin ZhangHancheng Wang...
    398-402页
    查看更多>>摘要：High-efficiency hydrogen production through photoelectrochemical(PEC)water splitting has emerged as a promising solution to address current global energy challenges.Ⅲ-nitride semiconductor photoelec-trodes with nanostructures have demonstrated great potential in the near future due to their high light absorption,tunable direct band gap,and strong physicochemical stability.However,several issues,includ-ing surface trapping centers,surface Fermi level pinning,and surface band bending,need to be addressed.In this work,enhanced photovoltaic properties have been achieved using gallium nitride(GaN)nanowires(NWs)photoelectrodes by adopting an alkaline solution surface treatment method to reduce the surface states.It was found that surface oxides on NWs can be removed by an alkaline solution treatment with-out changing the surface morphology through X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM)and other characterization methods.These findings provide new insights to the devel-opment of high-efficiency photoelectrodes for new energy source applications.
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    Shape and composition evolution of Pt and Pt3M nanocrystals under HCl chemical etching

    Lian SunHonglei WangMing MaTingting Cao...
    403-407页
    查看更多>>摘要：Controlling the shape and composition of Pt-based nanocrystals is essential to improve electrocatalytic performance.In this work,we have carefully investigated the evolution process of morphology and com-position for Pt and Pt3M(M=Ni,Co)nanocrystals by hydrochloric acid(HCl)etching.As a result,only Pt3Ni nanocrystals successfully formed unsaturated step-like atoms on the surface and then constructed high-index facets(HIFs),while Pt and Pt3Co preserved a good octahedron shape.Density functional the-ory(DFT)calculation suggests that Cl-ions can be tightly adsorbed on the surface of Pt3Ni rather than other nanocrystals,which hinders the deposition of newly-reduced atoms and thus regulating the surface morphology.Besides,the etching of surface transitional metals further accelerates the formation of HIFs.Boosted by the active sites on the surface,HCl-Pt-Ni exhibited a～10.8 and～11.3 times higher oxygen re-duction reaction(ORR)mass and specific activities than commercial Pt/C catalyst,and possessed a good durability after 10,000 cycles test.This work gives a deep insight into the design of high-performance Pt-based ORR catalysts.
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    Boosting the electrochromic properties by large V2O5 nanobelts interlayer spacing tuned via PEDOT

    Haohao SunWenxuan WangYuli XiongZelang Jian...
    408-413页
    查看更多>>摘要：Vanadium pentoxide(V2O5)with a layered structure is of great interest in the field of electrochromic(EC)due to its abundance of color variations.However,there are still a series of problems such as slow ion diffusion,poor electronic conductivity and cyclic stability in the reaction process.Herein,we success-fully prepared a stable and fast multi-color electrochromic material V2O5-PEDOT by a simple"one-pot"method.The layer space of V2O5 could be tuned by 3,4-ethylenedioxythiophene(named V2O5-PEDOT)during the dissolution and recrystallization of vanadium oxide.The expanded layer spacing facilitates rapid ion insertion and extraction.PEDOT serves as an internal conductive pillar to improve the over-all conductivity of the material.The obtained intercrossing structure of the nanobelts shortens the ion diffusion distance and ensures electrolyte penetration.The V2O5-PEDOT exhibits the fast response time(1.1s for coloration and 3.5 s for bleaching at 422 nm),high optical contrast(△T=45％at 422 nm and△T=35.2％at 1000 nm),great coloration efficiency(CE=97.1 cm2/C),and high cyclic stability(86％pre-served after 3000 cycles).The electrochromic devices(ECD)were successfully assembled by using V2O5-PEDOT films as ion storage layers and electrochromic layers,demonstrating remarkable performance.
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    Heterogeneous bimetallic oxides/phosphides nanorod with upshifted d band center for efficient overall water splitting

    Ji ChenYifan ZhaoShuwen ZhaoHua Zhang...
    414-420页
    查看更多>>摘要：Electrocatalytic water splitting is the most directly available route to generate renewable and sustainable hydrogen.Here,we report the design of a composite material in which arrays of square pillar-like NiMoO4 nanorods coated with N,P-doped carbon layers are uniformly contained in numerous nested nanoparti-cle structures.The catalysts have superior catalytic activity,requiring only 59 mV and 187 mV for HER and OER to attain a current density of 10mA/cm2,respectively.The assembled two-electrode electrolytic cell required a voltage of 1.48 V to reach 10mA/cm2,along with excellent long-term stability.Theoretical cal-culations reveal that electrons aggregate and redistribute at the heterogeneous interface,with the d-band centers of the Ni and Fe atoms being positively shifted compared to the Fermi level,effectively optimiz-ing the adsorption of intermediates and reducing the Gibbs free energy,thus accelerating the catalytic process.Meanwhile,an integrated solar-driven water-splitting system demonstrated a high and stable solar-to-hydrogen efficiency of 18.20％.This work provides new possibilities for developing non-precious metal-based bifunctional electrocatalysts for large-scale water splitting applications.
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    Collaborative integration of Fe-Nx active center into defective sulfur/selenium-doped carbon for efficient oxygen electrocatalysts in liquid and flexible Zn-air batteries

    Yufeng WuMingjun JingJuan LiWenhui Deng...
    421-425页
    查看更多>>摘要：Strategic active site organization is imperative for the advancement of effective and long-lasting cata-lysts of oxygen reduction reactions.However,the controllable multi-active site design is a highly intricate topic for catalyst synthesis.Employing pre-trapping and post-activation strategy,Fe-N bonding structure and S,Se functionalized heteroatom are integrated into a conductive porous carbon.In this process,the nitrogen-abundant polymer 1,3,5-triformylbenzene-tris(4-aminophenyl)benzene(Tf-TAPA)adsorbs Fe3+under the intrinsically metal anchoring ability of N atoms and simultaneously in-situ assembles long-chain thiophene-S.Subsequently,the Fe3+is transformed into Fe-Nx moieties with the conversion of the organic chain to incompletely graphitized carbon.Furthermore,the alteration of the electronic configu-ration achieved through the introduction of dual-atom S and Se leads to a pronounced enhancement in catalytic efficiency.Benefitting from the Fe-Nx bonding structure,dense structural defects,and conductive carbon networks,the resultant Fe-S,Se/NCNs possesses a positive half-wave potential of 0.86 V and a 90％current retention rate,outstripping the Pt/C benchmark.Moreover,the liquid and flexible ZAB driven by Fe-S,Se/NCNs achieves large power densities of 259.7 and 164.7 mW/cm2,respectively.This study pro-vides a new comprehension in developing an efficient and stable M-N-C oxygen electrocatalyst.
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